The effect of particle size on physicochemical and thermal analysis of rice husk for explosion studies

Mazilan, M.S.R. and Sulaiman, Siti Zubaidah and Semawi, N.H. and How, Fiona Ni Foong and Abdul Mudalip, S.K. and Che Man, R. and Arshad, Z.I.M. and Shaarani, S.M. (2023) The effect of particle size on physicochemical and thermal analysis of rice husk for explosion studies. Materials Today: Proceedings. E-ISSN 2214-7853 (In Press)

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Abstract

The effect of rice husk particle size on physicochemical and thermal behaviour was studied for identify whether it has the potential to explode. The thermal degradation of the lignocellulosic constituent in rice husk was evaluated via thermogravimetric analysis (TGA). Rice husk morphology and elemental composition were evaluated via scanning electron microscopy with energy dispersive X-ray (SEM-EDX). Results showed that the rice husk samples were richer in cellulose than in lignin in terms of weight percent, indicating that they were combustible. Uncontrolled combustion propagation can lead to an explosion. However, the presence of ±5 wt% silicon in rice husk may reduce the explosion severity due to its low thermal conductivity. Furthermore, the smallest particle size, 71 μm recorded faster thermal degradation and more explosive as compared to 106, 160 and 250 μm. This preliminary data is very useful to improve the safety technique specifically for rice husk dust explosion protection, prevention, and mitigation.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Thermal degradation; Cellulose; Silicon; Rice husk; Explosion
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Chemistry Kulliyyah of Science
Depositing User:	Dr Fiona How
Date Deposited:	17 Nov 2023 16:17
Last Modified:	17 Nov 2023 16:17
URI:	http://irep.iium.edu.my/id/eprint/108181

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